Device for superheating and drying steam



G. RESTUCCI 1,767,096

DEVICE FOR SUPERHEATING AND DRYING STEAM June 24, 1930.

Filed June '7. 1923 2 Sheets-Sheet l gill/4K l 0 G. RESTUCCI Filed June '7, 1923 2 Sheets-Sheet 2 lax/12am June 24, 1930.

DEVICE FOR SUPERHEATING AND DRYING mm Patented June 24, 1930 UNITED STATES PATENT, OFFICE GIUSEPPE REs'rUccI, or NAPLES, ITALY, ASSIGNOR NAPLES, ITALY DEVICE FOR SUPEBHEATING AND DRYING STEAM Application filed .Tune 7, 1923,8eria1 No. 644,012, and in Italy Oetober 19, 1922.

The present invention relates to a new type of valve for superheating and drying steam for the purpose of realizing fuel economy. 7

Numerous persevering and careful experiments have proved that by causing steam generated for driving motors to flow through conveniently shaped and arranged holes efficient drying of such steam is eifeoted. V

The object of the process hereinafter described is to obtain high efficiency in drying and superheating the steam by the subdivision of the steam and to improve the parts composing the valves to render such valves easy to operate.

The said improvements are illustrated in the accompanying drawings in which:

Figs. 1234 illustrate a valve for use in locomotives,

Fig. 1 being a vertical axial section of such valves,

Fig. 2 being an external View thereof, Fig. 3 being a plan view thereof, Fig. 4 showing a vertical section of a modified form of the invention.

Figs. 5, 6, 7 illustrate a valve for use in marine boilers,

Fig. 5 being a vertical axial section of such valve, 7

Fig. 6 bein an external section thereof, and c Fig. 7 being a section on line 7-7 of Fig.

5 while 1 Fig. 8 illustrates both in section and in plan an organ for subdividing steam into very thin thread like streamlets.

The valve illustrated in Figs. 1 to 4 con sists of a chamber ahaving an internal View partly in a member -'hwhich is connected to the and an equalizing valve -Z is provided,

will act on the piston in conjunctionwith the flange adapted to be fixed on the steam tube V lows a gradual starting of the engine to the ascertained the nature of my said invention "TO FRANCESCO VITALE,

valve and arranged in such a way that one nozzle at least will be clear of the lower end of the skirt of the piston when it is in the lowermost positionseated upon the seating The piston is operated by means of piston by means of a universal joint 4-' one side of which is in communication with the steam space in the dome by means of holes 'm and the o'ther side of which is in communication with the space below the upper wall n of the piston,whereby the steam acting on the under side of the piston steam flowing through the nozzles ffor raising the piston." V p In the modification illustrated in Fig. 4 the operation is substantially the same as in the valve above described, the only dilference being a constructional one and consisting in that the piston c is placed outside the nozzles which are provided in the wall of the cylinder -(Z I The valve for marine boilers illustrated in Figs. 5, 6, 7 consists of a chamber a provided with'an internal'hollovv cylinder --b" in the wall of "which the nozzles f are provided at a convenient, inclination to such cylinder. Within thecylinder -b' is the piston -0' which is adapted to be actuated by a screw h and corresponding hand wheel, 7 while holes m are provided .to equalize the piston pressure. The steam coming from the boiler passes through the inlet opening 0- divides into two branches atthe pipes p and enters the chamber a, from which it flows through the nozzles f to. the outlet +9- to reach the engine in a superheated laminated state. The nozzles 7 (Fig. 8) are preferably conically shaped having at their top a diaphragm provided with holes to augment the steam lamination and drawing.

The inclined position of the nozzles alboiler-of which the valve is'applied.

Having now particularly described and and in what manner the same is to be performed I declare that what I claim is 1. A device for drying and super-heating steam comprising in combination a piston valve comprising a head portion and an imperforate skirt carried directly by said head portion and connected to an external operating organ, a piston cylinder having a plurality of nozzles fixed in the wall thereof such nozzles beingadapted to be regulated and opened at will be means of said'piston to allow of the passage of steam therethrough, and a valve located in the head of the piston for equalizing the pressure on said piston above and below said head.

2. A device for drying and superheating steam comprising in combination a piston perforate skirt carried directly by said head portion and connected to an external operatin g organ, a piston cylinder having a plurality of nozzles fixed in the wall thereof, such nozzles being adapted to be regulated and opened at willbe means of said piston to allow of the passage of steam therethrough,

a seating for said piston and means on the edge of said skirt whereby said piston is adapted to cooperate with'said seating to form a positive closure for such device.

3. A device for drying and super-heating steam comprising in combination a piston valve comprising a head portion and an imperforate skirtcarried directly by said head portion and connected to an external operating organ, a piston cylinder having a plural allow of the passage of steam therethrough, a valve located in the head of the piston for equalizing the pressure on said piston and means whereby said piston is adapted to cooperate with a seating to form a positive closure for such device.

l. A device fordrying and superheating steam comprising incombination a piston perforate skirt carried directly by said head portion and connected to an external operating organ, a piston cylinder having a plurality of nozzles fixed in the wall thereof such nozzles being adapted to be regulated and opened .at will by means of said piston to allow of the passage of steam therethrough,

said piston is adapted to cooperate with said seating to form a positive closure for such device, such nozzles being arranged in inclined'order so that they are opened successively upon the actuationof the piston.

5. A device for drying and superheating steam comprising in combination a piston valve comprising a head portion and an imperfor ate skirt carried directly by said head portion and connected to an external operatvalve comprising a head portion and an im- 7 ity of nozzles fixed in the wall thereof such: nozzles being adapted to be regulated and opened at will by means of said piston to' valve comprising a head pOrtiOnand an im-- a seating for said piston and means whereby ing organ, a piston cylinder having a plurality of nozzles fixed in the wall thereofsuch nozzles being adapted to be'regulated and opened at will by means of said piston to allow of the passage of steam therethrough, a valve located in the head of the piston for equalizing the pressure on said piston, and means whereby said piston is adapted to cooperate with a seating to form a positive closure for such device, such nozzles-being arranged in inclined order so that they are opened successively upon the actuation of the piston.

6. A device for drying and super-heating steam, comprising in combination, a piston valve comprising a head portion and an imperforate skirt carried directly by said head portion, and an external operating organ for operating the piston, a seating for the base of the piston, an equalizing valve in the head of the piston, a cylinder in which the piston operates, said cylinder being provided with steam superheating and drying elements fixed to the wall of the cylinder, said elements being conically shaped and provided with a diaphragm having holes to subdivide the steam, the position of said elements being arranged spirally in the cylinder wall in order that one at least of them is in communication with an annular chamber formed by the base of the piston and said seating.

. In testimony whereof I have hereunto si ned my name;

GI 'sEPPE RESTUCCI. 

